/Engine/Source/Editor/Kismet/Classes/BlueprintPaletteFavorites.h
This method can be used to see if a specified action is already favorited by the user.
True if this action is already favorited, false if it not.
bool IsFavorited ( [TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< [FEdGraphSchemaAction](API\Runtime\Engine\EdGraph\FEdGraphSchemaAction) > PaletteAction ) const